The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 12, 1991
Filed:
Nov. 29, 1990
Applicant:
Inventors:
Chi J Chen, Kaohsiung, TW;
Cheng H Lin, Taipei Hsien, TW;
Tin Y Liu, Hsinchu Hsien, TW;
Ying C Hung, Taichung Hsien, TW;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F / ; H01F / ;
U.S. Cl.
CPC ...
75349 ; 148101 ; 148105 ;
Abstract
A process for preparing by a reduction/diffusion method rare earth-iron-boron alloy powders useful in permanent magnets. The process generates rare earth-iron-boron alloy powders having large and uniform particle sizes with minimal contamination. The process entails the use of a seed alloy among the starting materials, the seed alloy having substantially the same composition as the rare earth-iron-boron alloy to be prepared.
Chen, Chi. (1991). Process for preparing rare earth-iron-boron alloy powders (U.S. Patent No. 5064465). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5064465
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile